var popUpWin=0;
function popUpWindow(URLStr)
{
	left = 0;
	top = 0;
	width = 550;
	height = 300;
	if(popUpWin)
		if(!popUpWin.closed) popUpWin.close();
	popUpWin = open(URLStr, 'popUpWin', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbar=no,resizable=no,copyhistory=yes,width='+width+',height='+height+',left='+left+', top='+top+',screenX='+left+',screenY='+top+'');
}